One of the team members, David Marshall, had a suggestion in the publication for Nolan to consider if he didn't want to see his superhero fall victim to asphalt, the street dwelling nemesis of batman and underboss of the infamous character known as gravity.

"If Batman wanted to survive the flight, he would definitely need a bigger cape," Marshall wrote in the journal. "Or if he preferred to keep his style intact he could opt for using active propulsion, such as jets to keep himself aloft."